Datasheet

LM2734
V
IN
V
IN
EN
BOOST
SW
FB
GND
V
OUT
C3
L1
C2
R1
R2
D1
D2
ON
OFF
C1
R3
LM2734Z
www.ti.com SNVS334E –JANUARY 2005–REVISED APRIL 2013
LM2734Z Design Examples
Figure 16. V
BOOST
Derived from V
IN
Operating Conditions: 5V to 1.5V/1A
Table 2. Bill of Materials for Figure 16
Part ID Part Value Part Number Manufacturer
U1 1A Buck Regulator LM2734ZX Texas Instruments
C1, Input Cap 10µF, 6.3V, X5R C3216X5ROJ106M TDK
C2, Output Cap 10µF, 6.3V, X5R C3216X5ROJ106M TDK
C3, Boost Cap 0.01uF, 16V, X7R C1005X7R1C103K TDK
D1, Catch Diode 0.3V
F
Schottky 1A, 10VR MBRM110L ON Semi
D2, Boost Diode 1V
F
@ 50mA Diode 1N4148W Diodes, Inc.
L1 2.2µH, 1.8A ME3220–222MX Coilcraft
R1 8.87kΩ, 1% CRCW06038871F Vishay
R2 10.2kΩ, 1% CRCW06031022F Vishay
R3 100kΩ, 1% CRCW06031003F Vishay
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